The purpose of this study is to investigate whether a whole food, high soluble fiber diet can have a positive impact on muscle health and muscle function in older adults.

You may qualify for a study if you meet the following criteria.

Inclusion Criteria:

• Ages 65+ and non-smoker
• Willing to consume high fiber-containing foods
• No gastrointestinal disease
• No chewing problems
• BMI > 18.5
• No unexpected or unexplained weight loss or weight gain greater than 10lbs in the past 6 months
• Not already consuming a high-fiber diet
• Willing to consume an abundance of fruits, vegetables, nuts/seeds
• Willing to not consume probiotic supplements or antibiotics during the 13-week study
• No recent history of alcohol abuse (within the past 2 years)
• No history of any significant injury or surgery that currently affects physical functioning and ability to perform physical function testing
• Not already enrolled in another research study

This study will last approximately 12 weeks and will include 2 in-person visits and food pickup from the Tufts HNRCA 3x/week. 

During the in-person visits, participants will have their blood drawn, provide a stool sample, and undergo assessments for muscle mass, muscle composition, and physical function.

All food that participants will be asked to consume over the course of this study will be provided. Participants must also be willing to wear a step counter and track gastrointestinal symptoms.

You can receive up to $558 for completing all study visits.

There is no cost for you to participate in our research study.